Home / 20,965,021.23-31,455,098.73-7,320,177.84

Finding the Fourth Proportional to 20,965,021.23, 31,455,098.73 and 7,320,177.84

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Solution

The fourth proportional to 20,965,021.23, 31,455,098.73 and 7,320,177.84 is: 10,982,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965,021.23 : 31,455,098.73 = 7,320,177.84 : x
  2. Step 2: Convert to fraction form
    20,965,021.23/31,455,098.73 = 7,320,177.84/x
  3. Step 3: Cross multiply
    20,965,021.23x = 31,455,098.73 × 7,320,177.84
  4. Step 4: Simplify right side
    20,965,021.23x = 230,256,916,678,358.16
  5. Step 5: Solve for x
    x = 230,256,916,678,358.16/20,965,021.23
  6. Step 6: Final answer
    x = 10,982,908.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.